CVE-2018-20836

An issue was discovered in the Linux kernel before 4.20. There is a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free.
Race Condition
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.1 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 77%
VendorProductVersion
linuxlinux_kernel
𝑥
< 3.16.72
linuxlinux_kernel
3.17 ≤
𝑥
< 3.18.140
linuxlinux_kernel
3.19 ≤
𝑥
< 4.4.180
linuxlinux_kernel
4.5 ≤
𝑥
< 4.9.175
linuxlinux_kernel
4.10 ≤
𝑥
< 4.14.118
linuxlinux_kernel
4.15 ≤
𝑥
< 4.19.42
canonicalubuntu_linux
16.04
debiandebian_linux
8.0
debiandebian_linux
9.0
debiandebian_linux
10.0
f5traffix_signaling_delivery_controller
5.0.0
f5traffix_signaling_delivery_controller
5.1.0
netappactive_iq_unified_manager
9.5 ≤
netappsnapprotect
-
netappsolidfire_\&_hci_management_node
-
netappsolidfire_\&_hci_storage_node
-
netappstorage_replication_adapter_for_clustered_data_ontap
-
netappvasa_provider_for_clustered_data_ontap
7.2 ≤
netappvirtual_storage_console
7.2 ≤
netapphci_compute_node
-
opensuseleap
15.0
opensuseleap
15.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.226-1
fixed
bookworm
6.1.106-3
fixed
bookworm (security)
6.1.112-1
fixed
trixie
6.11.5-1
fixed
sid
6.11.6-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
disco
not-affected
cosmic
Fixed 4.18.0-14.15
released
bionic
Fixed 4.15.0-44.47
released
xenial
Fixed 4.4.0-157.185
released
trusty
ignored
linux-aws
disco
not-affected
cosmic
Fixed 4.18.0-1008.10
released
bionic
Fixed 4.15.0-1032.34
released
xenial
Fixed 4.4.0-1090.101
released
trusty
ignored
linux-aws-hwe
disco
dne
cosmic
dne
bionic
dne
xenial
Fixed 4.15.0-1032.34~16.04.1
released
trusty
dne
linux-azure
disco
not-affected
cosmic
Fixed 4.18.0-1008.8
released
bionic
Fixed 4.15.0-1037.39
released
xenial
Fixed 4.15.0-1037.39~16.04.1
released
trusty
ignored
linux-azure-edge
disco
dne
cosmic
dne
bionic
Fixed 4.15.0-1037.39
released
xenial
Fixed 4.15.0-1037.39~16.04.1
released
trusty
dne
linux-euclid
disco
dne
cosmic
dne
bionic
dne
xenial
ignored
trusty
dne
linux-flo
disco
dne
cosmic
dne
bionic
dne
xenial
ignored
trusty
dne
linux-gcp
disco
not-affected
cosmic
Fixed 4.18.0-1006.7
released
bionic
Fixed 4.15.0-1027.28
released
xenial
Fixed 4.15.0-1027.28~16.04.1
released
trusty
dne
linux-gcp-edge
disco
dne
cosmic
dne
bionic
Fixed 4.18.0-1006.7~18.04.1
released
xenial
dne
trusty
dne
linux-gke
disco
dne
cosmic
dne
bionic
dne
xenial
ignored
trusty
dne
linux-gke-4.15
disco
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-gke-5.0
disco
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-goldfish
disco
dne
cosmic
dne
bionic
dne
xenial
ignored
trusty
dne
linux-grouper
disco
dne
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-hwe
disco
dne
cosmic
dne
bionic
Fixed 4.18.0-14.15~18.04.1
released
xenial
Fixed 4.15.0-45.48~16.04.1
released
trusty
dne
linux-hwe-edge
disco
dne
cosmic
dne
bionic
not-affected
xenial
Fixed 4.15.0-45.48~16.04.1
released
trusty
dne
linux-kvm
disco
not-affected
cosmic
Fixed 4.18.0-1007.7
released
bionic
Fixed 4.15.0-1029.29
released
xenial
Fixed 4.4.0-1052.59
released
trusty
dne
linux-lts-trusty
disco
dne
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-utopic
disco
dne
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-vivid
disco
dne
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-wily
disco
dne
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-xenial
disco
dne
cosmic
dne
bionic
dne
xenial
dne
trusty
ignored
linux-maguro
disco
dne
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-mako
disco
dne
cosmic
dne
bionic
dne
xenial
ignored
trusty
dne
linux-manta
disco
dne
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem
disco
not-affected
cosmic
Fixed 4.15.0-1033.38
released
bionic
Fixed 4.15.0-1033.38
released
xenial
ignored
trusty
dne
linux-oracle
disco
not-affected
cosmic
Fixed 4.15.0-1008.10
released
bionic
Fixed 4.15.0-1008.10
released
xenial
Fixed 4.15.0-1008.10~16.04.1
released
trusty
dne
linux-raspi2
disco
not-affected
cosmic
Fixed 4.18.0-1009.11
released
bionic
Fixed 4.15.0-1031.33
released
xenial
Fixed 4.4.0-1117.126
released
trusty
dne
linux-snapdragon
disco
not-affected
cosmic
dne
bionic
Fixed 4.15.0-1053.57
released
xenial
Fixed 4.4.0-1121.127
released
trusty
dne
References